Drawing forming device for high-temperature alloy belt

By introducing adjustment components and arc-shaped clamps into the high-temperature alloy belt drawing and forming device, the problems of mold replacement and poor adaptability are solved, rapid mold fixation and stable clamping of alloy belts are achieved, and processing efficiency and convenience are improved.

CN119259723APending Publication Date: 2025-01-07JIANGSU SHENYUAN SPECIAL STEEL

Patent Information

Application Number
CN202411533694.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-01-07

AI Technical Summary

Technical Problem

The existing high-temperature alloy belt drawing and forming device is complicated when replacing molds and fixtures, resulting in poor convenience and the fixtures cannot adapt to alloy belts of different shapes and sizes, resulting in poor clamping effect, which increases procurement costs and reduces processing efficiency. .

Method used

A high-temperature alloy belt drawing forming device including adjustment components, sliding plates, traction components, guide blocks, transmission components and arc-shaped clamps is designed. Through the coordination of the adjustment rod and the sliding plate, the rapid fixing and replacement of the mold is achieved, and the use of Arc clamps and motor-driven transmission components enable stable clamping of alloy belts of different shapes.

Benefits of technology

It improves the convenience and processing efficiency of mold replacement, shortens the clamping time, enhances the clamping effect of alloy belts, and reduces procurement costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119259723A_ABST
    Figure CN119259723A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of alloy belt forming, and discloses a high-temperature alloy belt drawing forming device which comprises a workbench and further comprises an adjusting assembly arranged on the outer side of a mounting base. A guide block enters the inner side of a mounting base, then an adjusting rod is pressed to move towards one side of a fixing groove, a sliding block is driven to slide along an inclined groove, through movement of a sliding plate, a limiting groove is clamped to the outer side of the sliding block, meanwhile, the adjusting rod drives a fixing rod to enter the fixing groove, the guide block is fixed, and therefore a mold and the mounting base are fixedly connected; one end of a first rotating rod drives a second rotating rod to rotate, along with the change of the rotating angle, the other end of the second rotating rod drives a straight clamping plate to gradually move towards the center point, an arc-shaped clamping plate is tightened towards the inner side along with the straight clamping plate, and an alloy belt is fixed; and when the straight clamping plate needs to be used, a bolt is screwed off, the bolt is separated from a threaded hole, and then the arc-shaped clamping plate is pulled out. And the connecting block slides along one side of the straight clamping plate to complete separation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of alloy strip forming, in particular to a high-temperature alloy strip drawing and forming device. Background Art

[0002] The drawing forming device is a device specially used for processing high-temperature alloy strips. Its working principle is to process metal materials into products of desired shapes and sizes through a die. Specifically, the device will first heat the metal material to a certain temperature, and then apply a tensile force to it through a drawing die, causing it to undergo plastic deformation and flow inside the die, ultimately forming a product of desired shape and size.

[0003] During the use of the existing high-temperature alloy strip drawing and forming device, when it is necessary to produce alloy strips of different specifications, the mold needs to be replaced. The mold is usually fixed to the device body by multiple bolts. When installing or disassembling it, it is necessary to use tools to screw on or remove the bolts in turn. The disassembly and assembly steps are cumbersome, which reduces the convenience of mold replacement. When drawing the alloy strip, it is necessary to use a clamp to fix it. Since different batches of alloy strips have different shapes and sizes, the clamp usually cannot adapt to all shapes of workpieces, resulting in poor clamping effect. It needs to be replaced as a whole, which increases the procurement cost and reduces the processing efficiency. Summary of the invention

[0004] The object of the present invention is to provide a high temperature alloy strip drawing and forming device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a high-temperature alloy strip drawing and forming device, comprising a workbench, a base is fixedly connected to the top of the workbench, two symmetrical mounting seats are fixedly connected to the top of the base, a mold is arranged on the inner side of the mounting seat, a moving belt is arranged on the inner side of the workbench, a fixed frame is fixedly connected to the top of the moving belt, a push frame is arranged at one end of the top of the workbench, and further comprising:

[0006] An adjusting component is arranged on the outside of the mounting seat, a sliding plate is slidably connected to one side of the mounting seat, a limiting component for fixing the adjusting component is arranged on the inner side of the sliding plate, a traction component for traction to move the adjusting component is arranged on the outer side of the sliding plate, guide blocks are arranged on both sides of the mold, and the outer side of the guide block is slidably connected to the inner side of the mounting seat, a fixing component is arranged on one end of the adjusting component, and a spring is arranged on the outer side of the fixing component;

[0007] A motor is arranged at the top of one side of a fixed plate, and two groups of transmission components are symmetrically arranged at the output end of the motor, worm gears are respectively arranged on the outer sides of the two groups of transmission components, a rotating component is arranged on the inner side of the worm gear, a meshing component is arranged on the outer side of the rotating component, a connecting component is arranged on one side of the meshing component, a straight clamping plate is arranged at one end of the connecting component, a connecting block is slidably connected to one side of the straight clamping plate, an arc clamping plate for clamping an alloy strip is fixedly connected to one side of the connecting block, and a locking component is arranged at one end of the connecting block.

[0008] Preferably, the adjustment assembly comprises an adjustment rod sliding on the inner side of the mounting seat, the inner side of the adjustment rod is fixedly connected with a slider, and one end of the slider is fixedly connected with a support block.

[0009] Preferably, the limiting assembly comprises an oblique groove formed on the inner side of the sliding plate, and one end of the oblique groove is connected to the limiting groove.

[0010] Preferably, the traction assembly includes a first traction rod fixed to one side of the mounting seat, a tension spring is provided on the outer side of the first traction rod, a second traction rod is provided at the other end of the tension spring, and one end of the second traction rod is fixedly connected to one side of the sliding plate.

[0011] Preferably, the fixing assembly comprises a fixing rod fixed to one side of the supporting block, a fixing groove is provided on the inner side of the guiding block, and a spring is provided on the outer side of the fixing rod.

[0012] Preferably, the transmission assembly includes a transmission rod arranged at the output end of the motor, a worm is arranged on the outer side of the transmission rod, and the outer side of the worm is threadedly connected to the outer side of the worm wheel.

[0013] Preferably, a rotating shaft is fixedly connected to the inner side of the worm wheel, and two bearing seats are arranged at intervals on the outer side of the rotating shaft.

[0014] Preferably, the meshing assembly comprises a first tooth block fixed to the outer side of the rotating shaft, and the outer side of the first tooth block is meshingly connected with a second tooth block.

[0015] Preferably, the connecting assembly includes a first rotating rod fixed to one side of the first tooth block and the second tooth block respectively, the other end of the first rotating rod is rotatably connected to the second rotating rod, and the other end of the second rotating rod is rotatably connected to one side of the straight splint.

[0016] Preferably, the locking assembly includes two bolts arranged at one end of the connecting block, and two threaded holes are opened on one side of the straight clamping plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The invention enables the guide block to enter the inner side of the mounting seat and then presses the adjusting rod to move to one side of the fixing groove, driving the sliding block to slide along the oblique groove. Through the movement of the sliding plate, the limit groove is stuck in the outer side of the sliding block, thereby enabling the adjusting rod to enter a fixed state. At the same time, one end of the adjusting rod drives the fixing rod to enter the fixing groove to fix the guide block, thereby forming a fixed connection between the mold and the mounting seat, thereby improving the convenience of mold installation and replacement; one end of the first rotating rod drives the second rotating rod to rotate with the change of the rotation angle, and the other end of the second rotating rod drives the straight clamping plate to gradually move toward the center point, and the arc clamping plate is tightened inwardly to fix the alloy strip. When the straight clamping plate needs to be used, the bolt is unscrewed to disengage the bolt from the threaded hole, and then the arc clamping plate is pulled outward, and the connecting block slides along one side of the straight clamping plate to complete the separation, thereby shortening the time of clamp switching and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a preferred embodiment of the high-temperature alloy strip drawing and forming device provided by the present invention;

[0020] Figure 2 A schematic diagram of the side structure of the workbench provided by the present invention;

[0021] Figure 3 A schematic diagram of the connection structure between the mounting base and the mold provided by the present invention;

[0022] Figure 4 A schematic diagram of the structure of the fixing assembly provided by the present invention;

[0023] Figure 5 A schematic diagram of the transmission assembly structure provided by the present invention;

[0024] Figure 6 This is a schematic diagram of the locking assembly structure provided by the present invention.

[0025] In the figure: 1, workbench; 2, base; 3, mounting seat; 4, mold; 5, moving belt; 6, fixed frame; 7, push frame; 8, adjustment assembly; 81, adjustment rod; 82, slider; 83, support block; 9, sliding plate; 10, limit assembly; 101, oblique groove; 102, limit groove; 11, traction assembly; 111, first traction rod; 112, tension spring; 113, second traction rod; 12, guide block; 13, fixing assembly; 131, fixing rod; 132, fixing Fixed slot; 14. Spring; 15. Motor; 16. Transmission assembly; 161. Transmission rod; 162. Worm; 17. Worm wheel; 18. Rotation assembly; 181. Rotating shaft; 182. Bearing seat; 19. Engaging assembly; 191. First tooth block; 192. Second tooth block; 20. Connecting assembly; 201. First rotating rod; 202. Second rotating rod; 21. Straight splint; 22. Arc splint; 23. Connecting block; 24. Locking assembly; 241. Bolt; 242. Threaded hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-6As shown, a high-temperature alloy strip drawing and forming device comprises a workbench 1, a base 2 is fixedly connected to the top of the workbench 1, two symmetrical mounting seats 3 are fixedly connected to the top of the base 2, a mold 4 is arranged on the inner side of the mounting seat 3, and by arranging the mold 4, during the drawing process, the raw material will gradually deform under the action of the mold 4 and obtain the required shape and size; a moving belt 5 is arranged on the inner side of the workbench 1, a fixed frame 6 is fixedly connected to the top of the moving belt 5, and a push frame 7 is arranged at one end of the top of the workbench 1, and by arranging the push frame 7, it is convenient to pull the raw material The mold 4 is drawn and formed, which is a prior art and will not be described in detail here; it also includes: an adjustment component 8 arranged on the outside of the mounting seat 3, a sliding plate 9 is slidably connected to one side of the mounting seat 3, and the sliding plate 9 is arranged so that it can slide along one side of the mounting seat 3; a limiter component 10 for fixing the adjustment component 8 is arranged on the inner side of the sliding plate 9, and a traction component 11 for traction and movement of the sliding plate 9 is arranged on the outer side of the sliding plate 9, and guide blocks 12 are arranged on both sides of the mold 4, and the outer side of the guide block 12 is in contact with the inner side of the mounting seat 3. Sliding connection, one end of the adjustment component 8 is provided with a fixed component 13, and a spring 14 is provided on the outer side of the fixed component 13. By providing the spring 14, when the slider 82 is separated from the inner side of the sliding plate 9, the rebound force generated by the spring 14 can push the adjustment rod 81 to reset; the motor 15 is provided at the top of one side of the fixed plate, and by providing the motor 15, it is convenient to provide power for the transmission component 16; the output end of the motor 15 is symmetrically provided with two groups of transmission components 16, and the outer sides of the two groups of transmission components 16 are respectively provided with worm gears 17, and the inner side of the worm gear 17 is provided with a rotating The movable component 18 is provided with an engaging component 19 on the outer side of the rotating component 18, a connecting component 20 is provided on one side of the engaging component 19, and a straight clamping plate 21 is provided at one end of the connecting component 20. By providing the straight clamping plate 21 and the arc-shaped clamping plate 22, it is convenient to switch according to the shape when clamping alloy strips of different shapes, thereby improving the clamping stability; a connecting block 23 is slidably connected to one side of the straight clamping plate 21, and a arc-shaped clamping plate 22 for clamping the alloy strip is fixedly connected to one side of the connecting block 23, and a locking component 24 is provided at one end of the connecting block 23.

[0028] The adjusting assembly 8 includes an adjusting rod 81 that slides on the inner side of the mounting seat 3. By setting the adjusting rod 81, it can move parallel to the inner side of the mounting seat 3, driving the fixing rod 131 to enter or leave the inner side of the fixing groove 132; the inner side of the adjusting rod 81 is fixedly connected with a slider 82. By setting the slider 82, when the adjusting rod 81 moves to one side of the limiting groove 102, the slider 82 is driven to slide along the oblique groove 101. At the same time, the tension spring 112 set on the outer side of the first traction rod 111 pulls the second traction rod 113 through elastic force, so that the sliding plate 9 slides to one side. When the slider 82 slides to the oblique groove 101 When the end of the limit groove 102 is reached, it then slides into the inner side of the limit groove 102. Through the movement of the sliding plate 9, the limit groove 102 is stuck on the outer side of the slider 82, thereby making the adjusting rod 81 enter a fixed state; one end of the slider 82 is fixedly connected to a support block 83. By setting the support block 83, it is convenient to limit one end of the spring 14; the limit assembly 10 includes an oblique groove 101 provided on the inner side of the sliding plate 9. By setting the oblique groove 101, it is convenient to provide guidance for the movement path of the slider 82 entering the limit groove 102; one end of the oblique groove 101 is connected to the limit groove 102. By setting the limit groove 102, It is convenient to limit and fix the slider 82 so that the adjustment rod 81 cannot be displaced; the traction assembly 11 includes a first traction rod 111 fixed to one side of the mounting seat 3, and the first traction rod 111 is provided with an outer side thereof connected to one end of a tension spring 112, and the outer side thereof slides on the inner side of the slot provided on the sliding plate 9; a tension spring 112 is provided on the outer side of the first traction rod 111, and the tension spring 112 is provided so that the second traction rod 113 is pulled by elastic force to make the sliding plate 9 slide to one side; a second traction rod 113 is provided at the other end of the tension spring 112, and one end of the second traction rod 113 is It is fixedly connected to one side of the sliding plate 9; the fixing assembly 13 includes a fixing rod 131 fixed to one side of the support block 83. By setting the fixing rod 131, the adjusting rod 81 drives it into the inner side of the fixing groove 132, so that the guide block 12 can be fixed, thereby improving the convenience of installing and replacing the mold 4; a fixing groove 132 is opened on the inner side of the guide block 12. By setting the fixing groove 132, the adjusting rod 81 drives it into the inner side of the fixing groove 132, so that the guide block 12 can be fixed, thereby improving the convenience of installing and replacing the mold 4; and a spring 14 is provided on the outer side of the fixing rod 131.

[0029] The transmission assembly 16 includes a transmission rod 161 arranged at the output end of the motor 15. By setting the transmission rod 161, it is convenient to transmit the kinetic energy of the motor 15 and drive the worm 162 to rotate; a worm 162 is arranged on the outer side of the transmission rod 161. By setting the worm 162, when the motor 15 is started, the two symmetrically arranged worms 162 drive the worm wheel 17 meshingly connected on the outer side to rotate in opposite directions; and the outer side of the worm 162 is threadedly connected to the outer side of the worm wheel 17; the inner side of the worm wheel 17 is fixedly connected to the rotating shaft 181, and two bearing seats 182 are arranged at intervals on the outer side of the rotating shaft 181; the meshing assembly 19 includes a first tooth block 191 fixed to the outer side of the rotating shaft 181. By setting the first tooth block 191, the first tooth block 191 and the second tooth block 192 are symmetrically arranged and meshed with each other. When the first tooth block 191 rotates with the rotating shaft 181, it drives the second tooth block 192 to move, and the first tooth block 191 and the second tooth block 192 rotate When the first tooth block 191 is in the opposite direction, the outer side of the first tooth block 191 is meshed with the second tooth block 192; the connecting component 20 includes a first rotating rod 201 fixed to one side of the first tooth block 191 and the second tooth block 192 respectively, and the other end of the first rotating rod 201 is rotatably connected to the second rotating rod 202. By setting the second rotating rod 202, when one end of the first rotating rod 201 follows the rotation of the first tooth block 191 and the second tooth block 192, its other end drives the second rotating rod 202 to rotate. As the rotation angle changes, the other end of the second rotating rod 202 drives the straight splint 21 to gradually move toward the center point; and the other end of the second rotating rod 202 is rotatably connected to one side of the straight splint 21; the locking component 24 includes two bolts 241 arranged at one end of the connecting block 23, and two threaded holes 242 are opened on one side of the straight splint 21. By setting the locking component 24, when the bolts 241 are screwed into the threaded holes 242, the straight splint 21 is fixedly connected to the arc splint 22.

[0030] Working principle: in use, when the mold 4 needs to be replaced, first make the guide block 12 enter the inner side of the mounting seat 3, then press the adjusting rod 81 to move to one side of the fixing groove 132, drive the slider 82 to slide along the oblique groove 101, and at the same time, the tension spring 112 arranged on the outer side of the first traction rod 111 pulls the second traction rod 113 through elastic force, so that the sliding plate 9 slides to one side, and when the slider 82 slides to the end of the oblique groove 101, it then slides into the inner side of the limiting groove 102, and through the movement of the sliding plate 9, the limiting groove 102 is stuck on the outer side of the slider 82, so that the adjusting rod 81 enters a fixed state, and at the same time, one end of the adjusting rod 81 drives the fixing rod 131 to enter the fixing groove 132, fixes the guide block 12, and makes it unable to move, so that the mold 4 is fixedly connected to the mounting seat 3, which improves the convenience of installation and replacement of the mold 4, and when the alloy strip is drawn. After the raw material passes through the mold 4, the motor 15 starts to drive the worm 162 to rotate, which in turn drives the worm wheel 17 meshing with it to follow the rotation. At the same time, the worm wheel 17 drives the first tooth block 191 to rotate through the rotating shaft 181. When the first tooth block 191 follows the rotation, it drives the second tooth block 192 to rotate in the opposite direction of rotation. Then, the second rotating rod 202 is driven to rotate through one end of the first rotating rod 201. As the rotation angle changes, the other end of the second rotating rod 202 drives the straight splint 21 to gradually move toward the center point, and the arc splint 22 is tightened inward to fix the alloy strip. Then, the moving belt 5 drives the fixing frame 6 to move backward to draw the alloy strip. When the straight splint 21 needs to be used, the bolt 241 is unscrewed to disengage the bolt 241 from the threaded hole 242, and then the arc splint 22 is pulled out, and the connecting block 23 slides along one side of the straight splint 21 to complete the separation.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature alloy strip drawing and forming device, comprising a workbench (1), wherein the top of the workbench (1) is fixedly connected to a base (2), the top of the base (2) is fixedly connected to two symmetrical mounting seats (3), a mold (4) is arranged on the inner side of the mounting seat (3), a moving belt (5) is arranged on the inner side of the workbench (1), a fixed frame (6) is fixedly connected to the top of the moving belt (5), and a push frame (7) is arranged at one end of the top of the workbench (1), characterized in that: Also includes: An adjusting component (8) is arranged on the outside of the mounting seat (3), a sliding plate (9) is slidably connected to one side of the mounting seat (3), a limiting component (10) for fixing the adjusting component (8) is arranged on the inner side of the sliding plate (9), a traction component (11) for traction of the adjusting component (8) is arranged on the outer side of the sliding plate (9), guide blocks (12) are arranged on both sides of the mold (4), and the outer side of the guide block (12) is slidably connected to the inner side of the mounting seat (3), a fixing component (13) is arranged at one end of the adjusting component (8), and a spring (14) is arranged on the outer side of the fixing component (13); A motor (15) is arranged at the top end of one side of a fixed plate, and two groups of transmission components (16) are symmetrically arranged at the output end of the motor (15), and worm gears (17) are respectively arranged on the outer sides of the two groups of transmission components (16), and a rotating component (18) is arranged on the inner side of the worm gear (17), and a meshing component (19) is arranged on the outer side of the rotating component (18), and a connecting component (20) is arranged on one side of the meshing component (19), and a straight clamping plate (21) is arranged at one end of the connecting component (20), and a connecting block (23) is slidably connected to one side of the straight clamping plate (21), and an arc clamping plate (22) for clamping an alloy strip is fixedly connected to one side of the connecting block (23), and a locking component (24) is arranged at one end of the connecting block (23).

2. The high temperature alloy strip drawing and forming device according to claim 1, characterized in that: The adjustment assembly (8) comprises an adjustment rod (81) which slides on the inner side of the mounting seat (3); a slider (82) is fixedly connected to the inner side of the adjustment rod (81); and a support block (83) is fixedly connected to one end of the slider (82).

3. The high temperature alloy strip drawing and forming device according to claim 1, characterized in that: The limiting assembly (10) comprises an oblique groove (101) formed on the inner side of the sliding plate (9), and one end of the oblique groove (101) is connected to the limiting groove (102).

4. The high temperature alloy strip drawing and forming device according to claim 1, characterized in that: The traction assembly (11) comprises a first traction rod (111) fixed to one side of the mounting seat (3), a tension spring (112) is arranged on the outer side of the first traction rod (111), a second traction rod (113) is arranged at the other end of the tension spring (112), and one end of the second traction rod (113) is fixedly connected to one side of the sliding plate (9).

5. The high temperature alloy strip drawing and forming device according to claim 2, characterized in that: The fixing assembly (13) comprises a fixing rod (131) fixed to one side of the supporting block (83), a fixing groove (132) is provided on the inner side of the guiding block (12), and a spring (14) is provided on the outer side of the fixing rod (131).

6. The high temperature alloy strip drawing and forming device according to claim 1, characterized in that: The transmission assembly (16) comprises a transmission rod (161) arranged at the output end of the motor (15), a worm (162) is arranged on the outer side of the transmission rod (161), and the outer side of the worm (162) is threadedly connected to the outer side of the worm wheel (17).

7. The high temperature alloy strip drawing and forming device according to claim 1, characterized in that: A rotating shaft (181) is fixedly connected to the inner side of the worm wheel (17), and two bearing seats (182) are arranged at intervals on the outer side of the rotating shaft (181).

8. The high temperature alloy strip drawing and forming device according to claim 7, characterized in that: The meshing assembly (19) comprises a first tooth block (191) fixed to the outside of the rotating shaft (181), and the outside of the first tooth block (191) is meshedly connected with a second tooth block (192).

9. The high temperature alloy strip drawing and forming device according to claim 8, characterized in that: The connecting assembly (20) comprises a first rotating rod (201) respectively fixed to one side of the first tooth block (191) and the second tooth block (192); the other end of the first rotating rod (201) is rotatably connected to the second rotating rod (202); and the other end of the second rotating rod (202) is rotatably connected to one side of the straight splint (21).

10. The high temperature alloy strip drawing and forming device according to claim 1, characterized in that: The locking assembly (24) comprises two bolts (241) arranged at one end of the connecting block (23), and one side of the straight clamping plate (21) is provided with two threaded holes (242).

Citation Information

Patent Citations

  • Metal pipe drawing machining equipment

    CN113578985A

  • Steel bar stretching fixing and clamping device

    CN206854375U

  • Steel pipe stretching device

    CN214133366U

  • Flat steel drawing forming die

    CN216095618U

  • Clamping device for metal processing drawing machine

    CN218395348U

Cited By

  • Metal pipe machining device for highway construction

    CN120920560A

  • A metal pipe processing device for road construction

    CN120920560B